Impact of Perioperative Thromboembolic Complications on Future Long-term Risk of Venous Thromboembolism among Medicare Beneficiaries Undergoing Complex Gastrointestinal Surgery.

Patients with a history of perioperative VTE had a higher risk of developing subsequent VTE events within 1-2 years following complex GI surgery. The risk was more pronounced among patients who had perioperative PE rather than DVT. These findings were consistent among both cancer and non-cancer patients.